b. What total cholesterol level is the cutoff for the top 5% of men? (Round to 1 decimal place.) (4 pt) Scenario 2: Electronic Component The manufacturer of a certain electronic component claims that they are designed to last just slightly more than 4 years because they believe that customers typically replace their device before then. Based on information provided by the company, the components should last a mean of 4.24 years with a standard deviation of 0.45 years. For this scenario, assume the lifespans of this component follow a normal distribution. Use this scenario for problems 9 13. 9. We will consider several random variables for this scenario in the following problems. For each random variable below, determine if it follows a normal distribution, a binomial distribution, or neither. (2 pt ea) A. Normal B. Binomial C. Neither _ The lifespan of one randomly chosen component. _ In a group of 35 randomly chosen components, the number of them which last more than 4 years. _ The sample mean lifespan for groups of 20 randomly chosen components. _ The sample mean lifespan for groups of 35 randomly chosen components. _ The number of components that last more than 4.5 years from a group of 10 independent components